*{
  margin: 0;
  padding: 0;
}
body{
  background-color: #000;
  color: #666;
  text-align: center;
}
audio {
  width: 450px;
  margin: 30px 0;
}
.container{
  height: 500px;
  overflow: hidden;
}
.container::-webkit-scrollbar{
  display: none;
}
.container ul{
  list-style: none;
  transition: 0.6s;
  /*transform: translateY(-20px);*/
}
.container ul li{
  height: 30px;
  line-height: 30px;
  font-size: 18px;
  transition: 0.6s;
}
.container ul li.active{
  color: #fff;
  transform: scale(1.2);
}